Why did we choose 3M and why should you?ADHESIVES: 3M is a world leader in adhesives and glass film is only as good as the adhesive attaching it to the glass! If the adhesive doesn't hold up it doesn't matter how good the film is. Look at how many cars you see with bubbled up window tint. 3M is the only window film company in the world that produces its own adhesive system specifically designed for window film to glass applications. Their patented pressure-sensitive adhesive (PSA) is engineered to form an aggressive mechanical bond to the glass and can easily be removed at the end of its useful life. The result is a clean, long-lasting installation with improved impact resistance, and no bubbling, blistering, or wrinkling. 3M is also unmatched in optical clarity so your view out is never compromised. UV INHIBITORS: 3M adhesives are manufactured with UV inhibitors in the adhesive! No other film manufacturer does this. This helps to protect the adhesive from the suns damaging ultraviolet radiation. Most window film competitor's install the UV inhibitors between the adhesive and first layer of polyester, this exposes their adhesive to premature aging and reduces the life of the film.ABRASION RESISTANCE: 3M "Abrasion Resistant Technology" is a much more durable hard coat than the competition. In fact it's up to 6 to 10 times harder than most competitors scratch coat technology. This technology protects the film from being scratched when the film is bumped, touched or cleaned. While all window films can be scratched, 3m is a lot less likely to become damaged due to everyday use. "According to ASTM-1044 Standard Method of Test for Resistance of Transparent Plastics to Surface Abrasion, the 3M Abrasion Resistant Coating has been proven to be 6 to 10 times harder than coatings on lower priced films."PRODUCT TESTING: 3M has been making and testing window films longer than anyone in the business and uses state-of-the-art testing facilities to assure film quality. 3M tests for long term film durability, color stability, adhesive performance, and resistance to metallic corrosion. All tests performed are published by the American Society for Testing and Materials (ASTM) and are available upon request.WARRANTY: 3M has one of the best warranties available. 3M is one of the most respected companies in the world and their stability and financial strength will provide you with the assurance that they will be around to honor their commitments. 3M provides a comprehensive warranty that is a solemn agreement between you and 3M. Many of 3M’s competitors have not been in business very long. Many are foreign owned companies, and many of those have been bought and sold many times over the last few years; especially with the economy the way it's been. another thing to keep in mind is that other window film companies are usually owned by a bigger company. this means if they go out of business your warranty is gone, 3M is the name on the 3M's warranty so you have piece of mind that there not going anywhere.3M's Warranty covers film and labor. Only authorized Dealers are eligible to sell and install 3M window film Products.